Messages in this thread | | | From | Alan Cox <> | Subject | Re: irc/ircd loopback problem -- Further details | Date | Fri, 15 Mar 1996 11:24:14 +0000 (GMT) |
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> Since the error does not affect ircd->irc_client data flow but > only blocks irc_client->ircd flow, I would suspect it is the receive > buffer size change that is killing it. Perhaps some new code incorrectly > assumes the buffer size to be something other than what ircd changes it to. > > I'll continue investigating.
It breaks if the mtu of the path exceeds the buffer size (near enough). I don't know why yet, but thats definitely the problem. At the moment Im still trying to find why 1.3.73+ seem to be losing interrupts or doing other strange things that break SMP with that problem. The quick cure for ircd is
ifconfig lo mtu 1500
Alan
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